Shock-absorber.



H. EVANS.

SHOCK ABSORBER. APPLICATION FILED FEB. 1o, 1914.

1,1 19,005. Patented Dec. 1, 1914J FIQE.

HARRY EVANS., OF BRYN MAWR, PENNSYLVANIA.

SHOCK-ABSORBEB.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application iled February 10, 1914. vSerial No. 817,740.

To all whom it may concern:

fBe it known that I, HARRY EVANS, a citizen of the United States, residing at Bryn Mawr, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Shock- Absorbers, of which the following is a specification.-

The object of my invention is to provide a novel, simple and e'licient shock absorber for vehicles, particularly motor vehicles having spring supported bodies; and to this end my invented device consists of the elements and the combinations of them hereinafter fully described and particularly-claimed.

In the accompanying drawings, illustrating my invention Figure 1, is aside elevation of a portion of one Aof the side bars of the frame of a motor vehicle and one of its supporting springs having my improved shock absorber applied thereto. Fig. 2, is'a vertical section, on line 2-2 of Fig. l. Fi g'. 3, is a horizontal section, on line 8 8 of Fig. 1. Fig. 4, is a perspectiveview of the slidable block.

Referring to the drawings, 5 designates the forward end portion of one of the side bars of the frame of an automobile and 6 one of the forward supporting springs therefor. The forward end of the spring 6 is pivoted, at 7 ,to the forward end of the bar 5 and the rearward end of the spring 6 is connected to the bar 5 by means of my improved shock absorber which is constructed and connected as follows:

8 designates a bracket formed of a strip of metal bent to form two parallel side'members 9 and a bottom member 10. The upper ends of the side members 9 are inset to lit the sides of the bar 5 and are pivoted thereto by means of a bolt 11. Extending between the side members 9 is a -vertically slidable block 12 comprising a bottom wall 13, spaced side walls 14 rising from the bottom wall 13 and a removable plate 15 secured to the side Walls 14 by means of screws 16 extending through holes in the plate 15 and entering the side walls 14. The sidewalls 14 and plate 1.5 embrace the side members 9 and form guideways through which the side members slide when the block `12 moves vertically. The rearward end of the supportling spring G extends into the space between the walls 14- of the block '12 and is pivoted thereto by means of a ,pin 17 the ends of which extend into openings in the walls.

' between said side members and The outer Aends of the openings into -which the pin 17 extends are closed by the side members 9 which thus serve to prevent endwise displacement of the pin.

Screwed into or otherwise secured tothe bottom wall 13 of the block 12 is the upper end of a rod 18 which extends downwardly through an opening in the bottom member 10 of the bracket 8 and has a nut or head 19 screwed on to thevlower end thereof. Surrounding the rod 18 and secured to the bottom of the member l0 by means of rivets 20 is a head 2l. En'circling the rod 18 between andengaging the heads 19 and Q1 isa spring which is adapted to oppose upward movement of the block 12. The spring 22 and lower' portion of the rod 18 and the parts carried thereby .are entirely inclosed and protected by a guard 23, the upper end of which is screwed on to an annular iange 24 projecting downwardly from the head 2 1. The iiange 24 also serves to center the upper end of the spring 22 and hold it in place.

From the construction hereinbefore'described, it will be readily understood'that the block 12 will slide vertically between the side members 9 of the bracket 8 to permit the spring 22 tc absorb the shock usually given to the parts of the automobile as it passes over ruts or obstructions in the road.

I claim:

1. In a shock absorber, the combination with a vehicle frame and a supporting Spring therefor, of a bracket comprising two parallel side members connected at their bottoms, said side members being pivoted at their upper ends to said frame, a block mounted to slide vertically in said bracket comprising a bottom wall, spaced side walls rising from the bottom wall and a removable -plate secured to the sidewalls, said end walls and said plate embracing said side members and forming guideways, a pin carried by said block and extending across the space between said side walls and having said supporting spring connected thereto, a rod connected tosaid bottom wall and extending f lownwardly therefrom through the bottom lef said bracket and having a head onthe lower end thereof, and aspring encircling "said rod between said bracket -and said head and arranged to oppose upward movement of Said block.

2. In a shock absorber, the combination.

- spring therefor,

their upper ends a bottom wall, spaced side walls rising from` the bottom wall' and a removable plate secured to the ,side walls, saidend walls-and said plate embracing said side members and forming guideways, a pin extending into openings in said side walls and across the space therebetween and having said supporting .spring connected thereto, endwise displacement of said pin being prevented by said side members, a rod connected to said bottom wall and extending downwardly therefrom through the bottom of said bracket and having a head on the lower end thereof, and a spring encircling said rod between said bracket and said head and arranged to oppose upward movement of said block. A

3. In a shock absorber, the combination with a vehicle frame and a supporting a bracket formed of a strip of metal bent to form a bottom member and two parallel side members, said side members being pivoted at 'their upper ends to saidfframe, a block mounted to slide vertically in said bracket and connected to-said supporting spring, a rod connected to the said side members being pivoted at Vthe bottom of sai block .and extending `downwardly therefrom` through the bottom member ofthe bracket and .having a head on thelower end thereof, a head surrounding said rob` and secured to spring encircling sald rod between ,said

heads and'arranged to opposeupwardmove-- ment of said blocks. 4. In a shockabsorber, theipombination with a vehicle frame `.and\ l upporting spring' therefor, a bracket forme` a strip of metal bentl to forma bottomme two arallelside members,- lsaid bers eing pivotedattheir'upper said frame,'a block mounted. tqlgsl tioally in said bracket fand connected t'osaid supporting spring,

block and extending through the bottommember ci t ebracket and having a head on the lower en thereof, a head surrounding said rod and s'ecured-to the bottom of said' bottom member,A a\spring downwardly-,therefrom bottommember', and a a rod conneciedto-.fthe' encircling'said rod between said heads rand' to oppose upward movement ofarranged n and a guard securedjto the-second said block,

named head andinclosing said spring `and-` n Go rod. y y

In testimon whereof I aix .my signature in presence o two witnesses. i

HARRY EVANS'. Witnesses:

S. I. HARrER,

A. V. GROUPE. 

